main.tex

\documentclass[12pt]{ruthesis}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{latexsym}
\usepackage{graphicx}
\usepackage{theorem}
\usepackage{xcolor}
\newtheorem{proposition}{Proposition}


\usepackage[style=nature,sorting=none]{biblatex}
\addbibresource{report_bibliography.bib}


\theoremheaderfont{\itshape} \theoremstyle{break}

\title{The Research Project You Have Done for Your Qualification Exam}
\ctitle{The title of this report}
\author{Graduate Student}
\school{Rice University}
\degree{PhD Candidacy}

\address{Houston, Texas}
\donemonth{August} \doneyear{2021} \makeindex

\begin{document}

  \begin{frontmatter}
   \pagenumbering{roman}
   \maketitle
   \tableofcontents
  \end{frontmatter}
\pagenumbering{arabic}

\linespacing{1.5}

\include{maintext}


\linespacing{1}

\printbibliography

\end{document}